1. Jar A has 60 litres of mixture of milk and water in the respective ratio of 2 : 1. Jar B which had 40 litres of mixture of milk and water was emptied into jar A, as a result in jar A, the respective ratio of milk and water became 13 : 7. What was the quantity of water in jar B?
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By: anil on 05 May 2019 01.37 am
Jar A has 60 litres of mixture of milk and water in the respective ratio of 2 : 1 => Quantity of milk in Jar A = $$frac{2}{3} imes 60 = 40$$ litres Quantity of water in Jar A = $$60 - 40 = 20$$ itres Let quantity of water in Jar B = $$x$$ litres => Quantity of milk in Jar B = $$(40 - x)$$ litres Acc. to ques, => $$frac{40 + (40 - x)}{20 + x} = frac{13}{7}$$ => $$560 - 7x = 260 + 13x$$ => $$13x + 7x = 560 - 260$$ => $$20x = 300$$ => $$x = frac{300}{20} = 15$$ litres
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